Epidemiology and Therapy of Acute Pulmonary Thromboembolism -- Epidemiology of Pulmonary Embolism in Japan -- Thrombolytic Treatment of Acute Pulmonary Embolism: Toward the End of a Long-Lasting Debate? -- The Efficacy of Pharmacomechanical Thrombolysis in the Treatment of Acute Pulmonary Thromboembolism and Deep Venous Thrombosis -- Thrombolysis During Cardiopulmonary Resuscitation in Patients with Acute Pulmonary Embolism -- Catheter Interventions and Surgical Treatment of Acute Pulmonary Thromboembolism -- Surgical Treatment for Acute Massive Pulmonary Thromboembolism in Japan -- Emergency Surgical Pulmonary Embolectomy -- Catheter Interventions and Surgical Treatment of Pulmonary Embolism: Inferior Vena Cava Filter -- Traveler’s Thrombosis -- Pulmonary Thromboembolism Associated with Air Travel in Japan -- Thromboembolic Events Associated with Air Travel -- Venous Thromboembolism from Air Travel: The LONFLIT Studies -- Prevention of Venous Thromboembolism -- Incidence and the Prevention of Venous Thromboembolism in Japan: General Surgery -- Incidence and Prevention of Venous Thromboembolism in Orthopedic Surgery in Japan -- Incidence of Venous Thromboembolism and Guidelines for Thromboembolism Prophylaxis in Japan: Obstetrics and Gynecology -- Prevention and Treatment of Thrombosis in Pregnancy: The Newest Treatment Approaches -- Thromboprophylaxis in the Cancer Patient -- Prophylaxis of Venous Thromboembolism.Pulmonary thromboembolism in Japan is currently associated with a high mortality rate and remains a concern for patients and medical staff alike. Moreover, as the mechanisms of the condition have been elucidated, it has become clear that much work needs to be done in the field to achieve acceptable results in this country. Thus, Japan has regularly played host to the International Symposium on Pulmonary Thromboembolism . At the most recent symposium, in Sendai, the epidemiology and the treatment of pulmonary thromboembolism, traveler's thrombosis, and the prevention of deep vein thromboembolism were discussed, particularly with reference to the differences between Japan and Western countries. The fruits of the collaboration between that assembly of international specialists can be found in this collection of work. It provides an in-depth look at the current concepts that guide the treatment and prevention of the disease, and at the problem areas that must be improved upon.